It means that the properties of the system, the properties that describe the system, don't change in time or in space.

它的意思是指，用以描述系统的性质，不随时间或空间改变。

麻省理工公开课 - 热力学与动力学课程节选

So you don't have to write long papers, but what I'm saying is: the room is there for you to stretch out if you want to do that.

所以我的意思是：,有足够的空间留给你们发挥,如果你们想的话。

耶鲁公开课 - 1945年后的美国小说课程节选

what I'm talking about is a space, a safe space in our lives with our closest friends, with our family, first and foremost, with ourselves, will we have the permission to be human.

我的意思是一个空间，生活中的私密空间，和挚友一起时，和家人在一起时，最重要的是面对自己时，我们要准许自己为人。

哈佛公开课 - 幸福课课程节选

So this line here declares a variable, just storage space called "x" and it's of type "int," which means an integer has to go in it.

这里的这条线声明了一个变量，一个叫做“x“的存储空间，它的类型是“int“,意思是里面存储的是整数型的数据。

哈佛公开课 - 计算机科学课程节选